2	1
	2	3			6
						3
	1
						7
	7
		2			8	5
		4	7

Difficulty: Medium (0)

6	7
			8	2
3	5				2
		6		3			5
8			4		6
		7				2	4
			5	8
						6	2

Difficulty: Super easy (0)

						6	7
				8			2
		5	8		4	1
	5	6		7	3
7			3
3	8

Difficulty: Very easy (0)

			3
		4	6			7	3
			5
2	1				4
		3				6	2
				5
4	3			2	8
				3

Difficulty: Very easy (0)